This acts as bioindicator of air pollution:

Related Mcqs:

1. The air pollution caused by phosphate fertilizer factories is due to:The air pollution caused by phosphate fertilizer factories is due to:

   A. Phosphene
   B. SiF4
   C. Dust
   D. Halogens

2. Air pollution effects are usually found on:

   A. Leaves
   B. Flowers
   C. Stems
   D. Roots

3. In big cities, air pollution is mainly due to:

   A. Burning of fossil fuel
   B. Thermal power plants
   C. Sewage
   D. Suspended particles

4. The percentage of air pollution caused due to smoke:

   A. 10-15%
   B. 15-20%
   C. 20-25%
   D. 2-5%

5. Air pollution is caused by:

   A. Automobile exhausts
   B. Radioactive substances
   C. Smoke
   D. All of the above

6. Air pollution is maximum caused by:

   A. Sewage and industrial effluents
   B. Household detergents and pesticides
   C. Automobile exhausts and chemicals from industry
   D. Sewage and pesticides

7. Air pollution is not caused by:

   A. Thermal power plant
   B. Diesel engine
   C. Hydroelectric power station
   D. Pollen grain

8. Certain cities of Pakistan have been subjected to tremendous air pollution due to increased:

   A. Urbanization
   B. Mechanization
   C. Industrialization
   D. Civilization

9. Air pollution is caused by:

   A. The smoke, gases and fumes coming out of the factory chimneys
   B. The transport vehicles badly pollute the air
   C. Both (a) & (b)
   D. None of these

10. Pollution of SO2 destroy:

    A. Fungi
    B. Lichen
    C. Algae
    D. Fishes